MCQ
$\cos \left[\frac{\pi}{6}+\cos ^{-1}\left(-\frac{1}{2}\right)\right]$ નું મૂલ્ય_______ છે.
- ✓$-\frac{\sqrt{3}}{2}$
- B$\frac{\sqrt{3}-1}{2 \sqrt{2}}$
- C$\frac{\sqrt{5}-1}{4}$
- D$\frac{\sqrt{3}+1}{2 \sqrt{2}}$
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